Clevis.



Q vi messes PATENTE-DDEO. 25, 190 n "W. G. W. B. & J. L. POWELL.

- GLEVIS.

ABPLIOATION FILED FEB. 3 1906.

UNITED STATES PA FEN OFFICE.

WATKIN G. POWELL, WILLIAM B. POWELL, AND JAMES L.

' SHADELAND, PENNSYLVANIA.

POWELL, OF

CLEVIS.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Au'olication filed February 3, 1906. Serial No. 299.344.

T0 at whom it may concern.-

Be it known that we, WATKIN G. POWELL, WILLIAM B. POWELL, and learns L. POWELL, citizens of the United States, residing at Shadeland, in the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in Clevises, of which the following is a specification.

Our invention relates to an improvement in clevises, and it is especially constructed for use in connection with plows, whiflletrees, &c., the object being to, provide a clevis-pin which will remain in place. We attain this object by the construction illustrated in the accompanying drawings, in which i i Figure 1 is a perspective view of the front part of a plow-beam and our improved clevis attached thereto. Fig. 2 is an enlarged side elevation of the pin. Fig. 3 is a side elevation of the clevis with the clevispin locked in position, part of the clevis beingbroken away to show detail of construction. Fig. 4 is a detail sectional view of the head of the pin. clevis-pin and clevis, and Fig. 6 is a perspective view.of the clevis.

Similar letters refer to similar parts throughout the several views.

The clevis A is constructed with the upper and lower holes a and a, which register for the reception of the clevis-pin B. The upper opening or hole a is preferably larger than the lower one for a purpose to be disclosed hereinafter. The lower opening or hole is formed with an offset a to permit the passagethrough the hole of a shoulder b on the end of the pin B. This shoulder is formed by the reduction of the pin for a portion of its length, as shown at b This reduction is made upon the rear of the pm only, which causes the shoulder b and especially the upper part 12 ,130 be eccentric with the reduced portion and the smaller opening or hole a for a purposewhich will later be obvious. The upper hole is made large enough to receive the upper .part of the pin and'to permit the shoulder b to pass through.

The pin is formed with a head Y), shaped so as to be easily lifted or turned with the thumb and forefinger. The head is provided with an eye If, firmly secured in a hole 6 passing therethrough, and said eye receives Fig. 5 is a front view of the a U-shaped fastening device or latch C, whose arms are bent downwardly at an angle, as at c, and inwardly toward one another, as indi cated at c c. This fastening device is made ofspring-wire, and it is heldin an elevated position byforcing it above shoulders 12 b formed on the opposite sides of the head of the pin. When the fastening device is forced down over these shoulders, its ends 0 and c are confined between lugs D D, formed on the upper end of the clevis adjacent to the pin-hole. The purpose of these lugs is to limit the movement of the fastening device, and thereby prevent rotation of the pin by the jolting and jarring of the clevis due to the operation of the implement.

By the construction of the pin as described the application of draft or pull upon it will cause the pin to revolve, due to the eccentrlc, and assume its normal posltion in which it is locked by the fastening device.

turning the pin when placing it in position or removing it.

We do not desire to be limited in the metwisted clevis, where the pin is normally in a horizontal instead of a vertical position, and as a twisted clevis would involve no modification of our invention we have illustrated the one shape of clevis only. Our improved clevis can be readily applied'wherever desired without any specially-designed hole with notches or grooves in the side, as is necessary with many clevises. An ordinary round hole of proper size can be made through a whiflletree or wherever the clevis is to be coupled, and it will serve every purpose as well as if specially-formed. holes were employed.

Having thus fully I described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination with a clevis of an eccentric-pin provided with a movable fastening device adapted to engagewith the clevis and revent rotation of the clevis-pin, substantia ly as described.

2. The combination with a clevis, of an' eccentric-pin provided with a movable fase tening device adapted to engage with the clevis and prevent rotation of the clevis-pin and means for holding the fastening device out of contact with the clevis, substantially as described.

3.. The combination with a clevis provided with lugs on one arm thereof of an eccentric pin provided With a movable fastening device adapted to engage with the said lugs to prevent rotation of the clevispin, substantially as described.

4. The combination with a clevis provided with registering pin-openings, the lower one of smaller diameter than the upper and having an offset notch or groove therein, of a headed clevis-pin formed with a reduced portion and a shoulder on the end thereof, the reduced portion being of substantially the same diameter as the lower opening, a spring fastening device pivotally attached to the head of the pin, shoulders on the opposite sides of said head adapted to hold the fastening device in an elevated position and means upon the upper side of said clevis adapted to engage the said fastening device when in a lowered position and prevent rotation of the clevis-pin from a normal position, substantially as described.

5. The combination with a clevis provided with stops on the upper arm thereof, of a clevis-pin provided with a shoulder on the end thereofformed to engage with the lower arm of the clevis and prevent withdrawal and a latch adapted to be conhned between said stops and thereby prevent rotation of the clevis-pin from its normal position with the shoulder in engagement with the 1 wer arm of the clevis.

6. The combination with a clevis, of a clevis-pin formed with eccentric cylindrical portions and pin holes or openings in the clevis for the reception of the clevis-pin each of which is adapted to register with one of the eccentric portions thereof.

7. The combination with a clevis having clevis-pin holes of different diameters, of a clevis-pin formed with two eccentric portions each adapted to register with one of the pin-holes and means for locking the pin in position.

8. The combination with a clevis having clevis-pin holes of different diameters, of a clevis-pin formed. with two eccentric portions each adapted to register with one of the holes, and a latch to secure the clevis-pin against rotation.

In testimony whereof we affix our signatures in presence of two witnesses.

VVATKIN G. POWELL. WILLIAM B. POVVELIJ.

JAMES L. POVELL. Witnesses WALTER J. SKEELs, ROBERT W. PAT'ION. 

